Window-screen.



0. KARLSS.

WINDOW SCREEN.l APPLICATION FILED MAR. 4, 1912.

Patented Feb. 18, 1913.

sear [('alflss'I OSCAR KABLSS, 0E OAK PARK, ILLINIS.`

WINDOW-SREEN.I i

specification@ Lettersgratent, Patented Feb 18,1913- Application n led Iarch 4, 1912.I Ser'ial No. 681,428.

To all whom it may concern:

Be it known that I, OSCAR KARLss, a citizen 'of the United States, residing at Oak Park, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Window-Screens, of which the followingis aspecification.

This invention relates to window-screens which are connected to the sashes so that when the latter are opened the .screen will be extended into the sash-opening of the window frame. A

It isthe object of the invention to provide in a screen of this kind, .improved means for detachably connecting the same to the sash so that the latter may be opened with or without the screen.

The invention also has for its object to provide a fastening which, when the sash is closed, acts as a weather strip...

Other objects and advantages will be made manifest in the detailed description appearing hereinafter.

In order that the invention may be better understood, reference is had to the accompanying drawing forming a partv of this specification, in which drawing,

Figure 1 is an elevation of a window showing the application of the invention, one of the sashes being shown partly open. Fig. 2 is a vertical section on the line 2-2 of Fig. 1. Fig. 3 is a section on the line 3-3 of Fig. 2.

Referring specifically to the drawing', 5 denotes the head, 6 the pulley-Stiles, and 7 the sill of a window frame in which are mounted two slidingr sashes. The bottom rail 8 of the lower sash has a longitudinal groove 9 extending throughout the entire length thereof, said groove being substan-v tially semicircular in cross-section, andilocated in the bottom of the rail. In the sill 7 is a longitudinal recess 10 in which is mounted a spring roller 11 similar to an ordinary shade-roller, said roller carrying a sheet 12 of screen fabric, the free end of which passes out 'of the recess through a slit 13 ext-ending from the recess and opening through the top of the sill. To the free end of the sheet is fastened a reinforcing member 14 extending throughout the entire width of the sheet and being secured thereto in any suit-able manner. The member 14 is a metal strip bent into a substantially circu-` lar shape in cross-section andhaving a diameter which is greater than the width of the slit 13 so that it cannot be drawn into said slit, butwill extend across the top of the sill when the sheet is wound up on the spring roller. The cross sectional shape of the member 14, and the location of the groove 9 with respect to said member are such, that a portion of the latter seats in said groove when the lower .sash is down and the remainder of the member seats in `the slit 13, the outer portion of which latter is enlarged to accommodate the lower half of the circular portion of the member 14, and said member thus acts. as a weatherstrip to exclude wind and rain.

The sheet 12 is adapted to be connected to the lower sash,l so that when said sash is,r raised, the sheet will be drawn off the roller 11 and extended into the open space below the sash and thus serve as a screen. The

following connection is provided 'for this purpose: In' the bottom rall 8 .are recesses 15 which open through the inner face there-- of, and in the bottom of said rail are apertures 16 which extend from the groove 9 to the recesses 15. l In each recess 15 is mounted a spring latch 17 which extends downward through the aperture l-and has its head 18 located in the groove 9, so that when the member 14 enters said groove, the latch head snaps through an aperture 19 in said member, and thus locks the' screen to thel sash. The screenisnowlfastened to the sash and will unrollj'when. the latter is opened.` Upon disengaging the latches, the. sash may be opened without taking the screen along. f y I The upper sash vis also provided with a screen 20 as hereinbefore described, said screen being carriedyby a spring roller 21 mountedin a recess 22 in the head 5 of the window frame. The connection between the top rail 23 and the screen is the same as that .between the bottom rail and the lower screen,` a weatherstrip being therefore I the top rail also.

provided for loo On the outer edge of one of the Stiles 24 of the lower sash is mounted a ratchetvbar .25 which is engageablejby' a spring latch 26 mounted in the adjacent stile 6 ofthe window frame, whereby ,the sash isi locked.

Similar means are provided for locking the upper sash.

By the structure sash-weightmmay be dispensed with. The lower sash is held in open-or partly open position by the latch 26, and upon retracting herein described'the usual the latter, the sash automatically closes by its own Weight and the tension of the spring roller 11 of the screen which is connected to the sash. The top sash is automatically closed 'by the spring roller 21 upon releasing' the latch, said roller being provided with a spring .or a number of springs of suf.

yrecesses to the groove; of a roller mounted in the recess of the frame, a screen wound on the roller and passing out' of the recess through the slit, a strip secured to the end of the screen and fitting partly in the aforesaid groove and partly in the slit when the sash is closed, said strip having keeper apertures, and spring latches mounted in the recesses of the sash and passing through the apertures thereof into the groove, and en- 4 gageable with the keeper apertures, the recesses in which the latches are mounted opening through one side of the sash to permit access to the latches for disengaging the same from the keeper apertures.

In testimony whereof I afiix my signature in presence of two witnesses.

OSCAR KARLSS.

Witnesses:

S. J. LEHRER, H. G. BATCHELOR. 

